Music-leaf turner.



No. 801,953. PATENTED OCT. 17, 1905. H. L. WILSON.

MUSIC LEAF TURNER.

APPLICATION FILED nno.1,19o4

2 SHBETSSHEET 1.

Fl E. l I FIE. E TIE. El

Hi/77:7 M l /Q01? cured atits ends, respectively, to said shaft and the head 19. The spring is wound to give the requisite tension for movement of the leafturning elements by rotating said section, the latter being held, after the winding step, by a dog 23, carried by the lower casing-section engaging either one of two stops 23, projecting laterally from the lower end of the upper casing-section. The dog is provided at its upper end with a beveled side, whereby it is automatically depressed in the winding movement of the upper casing-section. The upper end of the dog is exterior to the casing-section, whereas it is preferred that the stem by which hand movement of the dog is obtained shall be located within the lower casing-section, and to this end the stem is offset, as at 2%, and is slidable in a slot 25 in the sectionwall. The stem 26 projects through and beyond the head 27 of the lower casing-section and terminates in a handle 28, which normally engages the under side of said head, as shown in Figs. 2 and 3. Said stem and dog are normally elevated by the action of a coilspring29, secured at its ends to the stem and said head.

In operation in order to adjust the device the lower leaves of the music are cut from the bottom a distance equal to the height of an element or arm in its active position. An element or arm is then set behind each leaf to be turned, and either before or after this step the upper casing-section is wound. The spring 12 operates to force the uppermost element or arm into the recess and the slot 21 in the upper casing-section.

It will be understood from the foregoing that the upper casing-section is locked against operative rotation by the engagement of the dog with one of the shoulders 23, and when it is desired to turn a leaf the handle 28 is seized by the performer and moved down wardly, thereby depressing the dogand disengaging it from the adjacent stop 23, whereupon the upper casing-section is automatically revolved to carry the uppermost element or arm and the music-leaf engaged thereby sufiiciently to cause complete turning of said leaf. The upper casing-section is provided interiorly at its lower end with stops 30, which act to positively move the elements or arms in the rotative' movement of the upper casing-section until said elements or arms are caught by a stop 31, projecting from the upper end of the lower casing-section. The position of this stop 31 is such as compels the registering of the vertical slots in the upper and lower casing-sections, whereby the uppermost element or arm after accomplishing the turningof the leaf falls vertically through the tube and slot 6 8 and the device is reset for the next operation. This traverse of an element or arm takes place after each leaf-turning operation, each element after being moved dropping in the tube and slot 6 8, from whence they may be successively withdrawn through the opening 16, as above stated. The elements or arms are therefore brought successively into and out of action, an inactive element being replaced by the next succeeding active element, the movements of the elements being manually controlled by manipulation of the handle 28.

I claim as my invention-- 1. Ina music-leaf turner, aplurality of leafturning elements, means for moving said elements bodily successively into active position and means for successively operatingsaid elements while in active position to turn the leaves.

2. In a music-leaf turner, a plurality of leafturning elements, means for moving said elements bodilysuccessively into active position and spring-propelled means for successively operating said elements while in active position to turn the leaves.

3. In a music-leaf turner, a plurality of leafturning elements, means including aspring for moving said elements bodily successively into active position, spring-propelled means for successively operating said elements while in active position to turn the leaves, and hand. means for controlling the operation of said elements.

4. In a music-leaf turner, a leaf-turning element, means for elevating said element bodily into active position and means for horizontally swinging said element from its active position to turn a leaf.

5. In a music-leaf turner, a leaf-turning ele ment, means for elevating said element bodily into active position, means for horizontally swingingsaid element from its active position to turn a leaf, and a support for said element during its swinging movement said support terminating to permit the depression of said element at the end of its swinging movement.

6. In a music-leaf turner, a leaf-turning element, means including a spring for elevating said element bodily into active position, normally locked means including a spring for horizontally swinging said element from its active position to turn a leaf, hand-controlled means for releasing said last-named means, and a support for said element during its swinging movement said support terminating to permit the depression of said element at the end of its swinging movement.

7 In amusic-leaf turner, a lower fixed casing, an upper spring-rotated casing, hand-controlled means for locking and releasing the upper casing, a plurality of leaf-turning elements vertically movable in the lower casing to successively occupy a recess in the upper casing, and a spring in the lower casing to move said elements.

8. In a music-leaf turner, a lower fixed casing having therein oppositely-disposed vertical tubes and vertical slots in its walls at said tubes, leaf-turning arms slidably arranged at their inner ends in one of the tubes and slots, a spring for moving said arms in said tube and slot, a shaft extending vertically from the lower casing, an upper casing rotatable on said shaft and moved by a spring and having in its lower end recesses normally registering with said tubes and slots.

9. In a music-leaf turner, a lower fixed casing having therein oppositely-disposed vertical tubes and vertical slots in its opposite walls communicating with said tubes, leaf-turning arms slidably arranged at their inner ends in one of the tubes and slots, a spring-pressed follower for vertically moving said arms, a shaft extending vertically from the lower casing, an upper casing rotatable by spring action on said shaft and having in its lower ends oppositely-disposed recesses normally registering With the tubes and slots, stops on the upper casing, and a spring-pressed hand-controlled dog for locking and releasing said upper casing.

10. In a music-leaf turner, alower fixed casing having in its opposite sides vertical recesses having oppositely-extending lateral extensions, leaf-turning arms slidably confined at their inner ends in said recesses, a springpressed follower for vertically moving said arms, said follower having a handle and adapted to be turned laterally to engage one of the recess extensions to hold it in depressed position to permit the insertion of the arm ends in the opposite extension,-a shaft extending vertically from the lower casing, an upper casing rotatable by spring action on said shaft and having in its lower end recesses normally registering with the aforesaid recesses, stops for limiting the movements of the upper casing, and hand-controlled means for locking and releasing said upper casing.

In testimony whereof I affix my signature in presence of two witnesses.

HARRY L. WILSON. WVitnesses:

A. M. STURDEVANT, F. B. lVILLrrs. 

